Polysiloxane compound and method of producing the same

ABSTRACT

A polysiloxane represented by the formula (1) or (2): 
     
       
         
         
             
             
         
       
     
     where R, R 1 , R 2 , m and n are defined in the specification.

TECHNICAL FIELD

The present invention relates to a polysiloxane obtained by using asilsesquioxane derivative and a method of producing the polysiloxane.The polysiloxane is expected to be applied in various fields includingelectronic material, optical material, optoelectronic material, paint,and primer.

Here, the term “silsesquioxane” is a generic name for compounds in whicheach silicon atom is bound to three oxygen atoms, and each oxygen atomis bound to another silicon atom. The term “silsesquioxane skeleton” tobe used in the present invention is a generic name for a silsesquioxanestructure and a silsesquioxane-like structure obtained by deforming partof the silsesquioxane structure.

BACKGROUND ART

Studies have been conducted on the application of a polymer containing asilsesquioxane skeleton to various fields because the polymer has aspecific skeleton structure. A polymer having a silsesquioxane skeletonstructure has been heretofore synthesized by a sol-gel method involvingthe use of alkoxysilane such as triethoxysilane. However, the sol-gelmethod involves a large number of problems, for example, the methodrequires a long reaction time, makes it difficult to control a reaction,and is apt to leave fine holes.

Further, in recent years, a polymer using silsesquioxane having acage-type structure or a derivative thereof has been studied, and thepolymer is expected to have excellent weatherability, heat resistance,physical properties, and optical properties. For example, Lichtenhan etal. have disclosed a method of producing a copolymer obtained bypolymerizing a silsesquioxane having a cage-type structure containing adefect, that is, a so-called incomplete cage-type structure (a structurewhich is not of a complete octahedral shape and part of which is lost)with siloxane (U.S. Pat. No. 5,412,053 and U.S. Pat. No. 5,589,562). Theproduction method involves crosslinking the polyhedral oligomericsilsesquioxane by using a bifunctional silane, siloxane, ororganometallic compound having amine etc. as a functional group.Lichtenhan et al. have also disclosed a method of producing a copolymerhaving, as its main chain, silsesquioxane of an incomplete cage-typestructure bound with siloxane etc. and a method of producing a copolymerusing silsesquioxane of a cage-type structure as a pendant copolymercomponent and methacrylic acid as a copolymer main chain component(Comments Inorg. Chem., 1995, 17 115-130). Further, Lichtenhan et al.also disclose a method of producing a silsesquioxane-siloxane copolymerby reacting —OH which is bound to Si at a corner of the incompletecage-type silsesquioxane with, for example, bis(dimethylamino)silane(Macromolecules, 1993, 26 2141-2142). Anderson et al. have obtained asilsesquioxane oligomer by: lithiating a silsesquioxane having silanolwith n-butyllithium; and reacting the resultant with a silsesquioxanehaving Si—Cl at one site in a perfect cage-type structure (Chem.Matter., 2006, 18(6) 1490-1497).

The inventors of the present invention have reported that a polysiloxanecan be obtained from an organic silicon compound containing silanol andreferred to as a double-decker structure alone or by reacting thecompound with silane or siloxane having Si—Cl (WO 2005/000857). Further,the inventors have reported that a linear polymer having a perfectcage-type structure on its main chain can be obtained by reacting asilsesquioxane having two silanols at positions symmetric with respectto each other with a siloxane having Si—Cl (JP 2006-22207). Thesedocuments discloses a method of obtaining a polymer of a silsesquioxane,but these documents describe neither a compound corresponding to apolysiloxane containing a reactive group at a terminal of its polymermain chain to be provided by the present specification nor a method ofproducing the compound.

DISCLOSURE OF THE INVENTION

Further improvements in heat resistance, electrical insulating property,durability, and moldability etc. have been particularly demanded inelectrical and electronic materials. However, conventionalsilsesquioxane copolymers are not sufficient to satisfy the demands forthese characteristics. In view of the foregoing, a compound having acage-type silsesquioxane structure as its main chain and having clearlydetermined binding position, which is excellent in heat resistance,electrical insulating property, weatherability, hardness, mechanicalstrength, and chemical resistance, etc., has been demanded.

The inventors of the present invention have found that a polysiloxanerepresented by the following formula (1) or (2) can be synthesized byreacting a silsesquioxane represented by the formula (1-0-1) with silanerepresented by the formula (1-0-2) at an appropriate ratio. Further, theinventors have found that a polysiloxane containing a reactive group ata terminal of its main chain can be obtained by performing the reactionwith, for example, a reactive chlorosilane. Thus, the inventors havecompleted the present invention.

That is, the above-mentioned problems are solved by the presentinvention composed of the following constitution.

[1] A polysiloxane represented by the formula (1) or (2):

In the formula (1) and (2):

R independently represents

alkyl having 1 to 45 carbon atoms whereby optional hydrogen may bereplaced by fluorine and optional —CH₂— may be replaced by —O—, —CH═CH—,or cycloalkylene;

cycloalkyl having 4 to 8 carbon atoms;

substituted or unsubstituted aryl whereby optional hydrogen on benzenering may be replaced by halogen or alkyl having 1 to 10 carbon atoms inwhich optional hydrogen may be replaced by fluorine and optional —CH₂—may be replaced by —O—, —CH═CH—, or phenylene; or

substituted or unsubstituted arylalkyl whereby optional hydrogen onbenzene ring may be replaced by halogen or alkyl having 1 to 10 carbonatoms in which optional hydrogen may be replaced by fluorine, andoptional —CH₂— may be replaced by —O—, —CH═CH—, or phenylene, andalkylene of the arylalkyl has 1 to 10 carbon atoms whereby optionalhydrogen may be replaced by fluorine and optional —CH₂— may be replacedby —O—, —CH═CH—, or phenylene;

m and n independently represent an integer of 1 to 1,000;

wherein when m=1, R¹ is independently selected from the group consistingof hydroxyl, alkoxy, acetoxy, and —OSi(A)₃, and when 2≦m≦1,000, R¹ isindependently selected from the group consisting of hydrogen, hydroxyl,halogen, alkoxy, acetoxy, —OSi(A)₃, and a group defined in the samemanner as R;

-   -   in —OSi(A)₃, A independently represents hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene; or

phenyl; and

R² independently represents hydrogen or —Si(A)₃ whereby A represents agroup defined in the same manner as A in R¹.

[2] A polysiloxane represented by the formula (1-0) or (2-0):

In the formula (1-0) and (2-0):

when m=1, R¹ is independently selected from the group consisting ofhydroxyl, alkoxy, acetoxy, and —OSi(A)₃, and when 2≦m≦1,000, R¹ isindependently selected from the group consisting of hydrogen, hydroxyl,halogen, alkoxy, acetoxy, —OSi(A)₃, alkyl having 1 to 10 carbon atoms,and phenyl;

-   -   in —OSi(A)₃, A independently represents hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by phenylene, —O—, —CH═CH— or phenylene; or

phenyl; and

R² independently represents hydrogen or —Si(A)₃ whereby A represents agroup defined in the same manner as A in R¹.

[3] A polysiloxane represented by the formula (1-1):

In the formula (1-1), m represents an integer of 1 to 1,000.

[4] A polysiloxane represented by the formula (1-2):

In the formula (1-2), m represents an integer of 1 to 1,000.

[5] A polysiloxane represented by the formula (1-3):

In the formula (1-3), A independently represents

hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, an oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene; or

phenyl; and

m represents an integer of 1 to 1,000.

[6] A polysiloxane represented by the formula (1-4):

In the formula (1-4), m represents an integer of 1 to 1,000.

[7] A polysiloxane represented by the formula (1-5):

In the formula (1-5), m represents an integer of 2 to 1,000.

[8] A polysiloxane represented by the formula (1-6):

In the formula (1-6), m represents an integer of 1 to 1,000.

[9] A polysiloxane represented by the formula (2-1):

In the formula (2-1), n represents an integer of 1 to 1,000.

[10] A polysiloxane represented by the formula (2-2):

In the formula (2-2),

n represents an integer of 1 to 1,000, and

A independently represents

hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene;

phenyl.

[11] A method of producing a polysiloxane represented by the formula(1-a) or (2-a), comprising reacting a compound represented by theformula (1-0-1) with a compound represented by the formula (1-0-2):

In the formula (1-0-1),

R independently represents

alkyl having 1 to 45 carbon atoms whereby optional hydrogen may bereplaced by fluorine, and optional —CH₂— may be replaced by —O— or—CH═CH—;

cycloalkyl having 4 to 8 carbon atoms;

substituted or unsubstituted aryl whereby optional hydrogen on benzenering may be replaced by halogen or alkyl having 1 to 10 carbon atoms inwhich optional hydrogen may be replaced by fluorine, and optional —CH₂—may be replaced by —O— or —CH═CH—; or

substituted or unsubstituted arylalkyl whereby optional hydrogen onbenzene ring may be replaced by halogen or alkyl having 1 to 10 carbonatoms in which optional hydrogen may be replaced by fluorine, andoptional —CH₂— may be replaced by —O— or —CH═CH—, and alkylene of thearylalkyl has 1 to 10 carbon atoms, and optional —CH₂— in the alkylenemay be replaced by —O—; and

In the formula (1-0-2),

X represents a group capable of reacting with silanol;

In the formula (1-a) and (2-a),

R represents a group defined in the same manner as R in the formula(1-0-1);

X represent a group defined in the same manner as X in the formula(1-0-2); and

m and n represent an integer of 1 to 1,000.

[12] A method of producing a polysiloxane represented by the formula(1-a′) or (2-a), comprising reacting a compound represented by theformula (1-0-1′) with a compound represented by the formula (1-0-2′):

In the formula (1-0-1′) and (1-0-2′)

M is alkali metal, and R independently represents

alkyl having 1 to 45 carbon atoms whereby optional hydrogen may bereplaced by fluorine, and optional —CH₂— may be replaced by —O— or—CH═CH—;

cycloalkyl having 4 to 8 carbon atoms;

substituted or unsubstituted aryl whereby optional hydrogen on benzenering may be replaced by halogen or alkyl having 1 to 10 carbon atoms inwhich optional hydrogen may be replaced by fluorine, and optional —CH₂—may be replaced by —O— or —CH═CH—; or

substituted or unsubstituted arylalkyl whereby optional hydrogen onbenzene ring may be replaced by halogen or alkyl having 1 to 10 carbonatoms in which optional hydrogen may be replaced by fluorine, andoptional —CH₂— may be replaced by —O— or —CH═CH—, and alkylene of thearylalkyl has 1 to 10 carbon atoms, and optional —CH₂— in the alkylenemay be replaced by —O—; and

X¹ represents halogen;

In the formula (1-a′) and (2-a),

R represents a group defined in the same manner as R in the formula(1-0-1′);

X¹ represents a group defined in the same manner as X¹ in the formula(1-0-2′); and

m and n represent an integer of 1 to 1,000.

[13] A method of producing a compound represented by the formula (1-b),comprising producing a compound represented by the formula (1-a) by themethod according to [11], and hydrolyzing the resultant compoundrepresented by the formula (1-a):

In the formula (1-b),

R represents a group defined in the same manner as in the formula (1-a);and

m represents an integer of 1 to 1,000.

[14] A method of producing a compound represented by the formula (1-b),comprising producing a compound represented by the formula (1-a′) by themethod according to [12], and hydrolyzing the compound represented bythe formula (1-a′):

In the formula (1-b),

R represents a group defined in the same manner as R in the formula(1-a′); and

m represents an integer of 1 to 1,000.

[15] A method of producing a compound represented by the formula (1-c),comprising producing a compound represented by the formula (1-b) by themethod according to [13] or [14], and reacting the compound representedby the formula (1-b) with a compound represented by the formula (1-0-3):

In the formula (1-0-3) and (1-c),

R represents a group defined in the same manner as R in the formula(1-b);

m represents an integer of 1 to 1,000;

X represents a group capable of reacting with silanol;

A independently represents

hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxa-cyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene; or

phenyl.

[16] A method of producing a compound represented by the formula (1-c),comprising producing a compound represented by the formula (1-a) by themethod according to [11], and reacting the compound represented by theformula (1-a) with a compound represented by the formula (1-0-4):

In the formula (1-0-4) and (1-c),

R represents a group defined in the same manner as R in the formula(1-a);

m represents an integer of 1 to 1,000;

A independently represents

hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxa-cyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene; or

phenyl.

[17] A method of producing a compound represented by the formula (1-c),comprising producing a compound represented by the formula (1-a′) by themethod according to [12], and reacting the compound represented by theformula (1-a′) with a compound represented by the formula (1-0-4):

In the formula (1-0-4) and (1-c),

R represents a group defined in the same manner as R in the formula(1-a′);

m represents an integer of 1 to 1,000;

A independently represents

hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxa-cyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene; or

phenyl.

[18] A method of producing a compound represented by the formula (2-b),comprising producing a compound represented by the formula (2-a) by themethod according to [11] or [12], and reacting the compound representedby the formula (2-a) with a compound represented by the formula (1-0-3):

In the formula (1-0-3) and (2-b),

R represents a group defined in the same manner as R in the formula(2-a);

n represents an integer of 1 to 1,000;

X represents a group capable of reacting with silanol;

A independently represents

hydrogen;

alkyl having 1 to 10 carbon atoms whereby optional hydrogen may bereplaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxa-cyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene; or

phenyl.

[19] A method of producing a compound represented by the formula (1-d),comprising producing a compound represented by the formula (1-c) inwhich at least one of A's represents hydrogen, and remaining of A'srepresent alkyl having 1 to 10 carbon atoms, phenyl, or phenylalkyl bythe method according to any one of [15] to [17], and reacting theresultant compound with a compound represented by the formula (1-0-5):

In the formula (1-0-5) and (1-d),

A¹ represents alkyl having 1 to 8 carbon atoms whereby optional hydrogenmay be replaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxa-cyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene;

R represents a group defined in the same manner as R in the formula(1-c); and

at least one of A²'s represents —CH₂CH₂A¹, and remaining of A²'s areindependently selected from the group consisting of alkyl having 1 to 10carbon atoms, phenyl, and phenylalkyl.

[20] A method of producing a compound represented by the formula (2-d),comprising producing a compound represented by the formula (2-b) inwhich at least one of A's represents hydrogen, and remaining of A'srepresent alkyl having 1 to 10 carbon atoms, phenyl, or phenylalkyl bythe method according to [18], and reacting the resultant compound with acompound represented by the formula (1-0-5):

In the formula (1-0-5) and (2-d),

A¹ represents alkyl having 1 to 8 carbon atoms whereby optional hydrogenmay be replaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxa-cyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto, and optional —CH₂— may bereplaced by —O—, —CH═CH— or phenylene;

R represents a group defined in the same manner as R in the formula(2-b); and

at least one of A²'s represents —CH₂CH₂A¹, and remaining of A²'s areindependently selected from the group consisting of alkyl having 1 to 10carbon atoms, phenyl, and phenylalkyl.

The terms as used herein are defined as follows. Each of alkyl andalkylene may be linear or branched. This holds true for the case whereoptional hydrogen in each of alkyl and alkylene is replaced by halogen,cyclic group, or the like, and for the case where optional —CH₂— in eachof alkyl and alkylene is replaced by —O—, —CH═CH—, cycloalkylene,phenylene, or the like. The term “optional” as used herein means thatnot only a position but also a number is optional. When multiple groupsare replaced by other groups, groups by which the multiple groups arereplaced may be different from each other. For example, the case whenoptional —CH₂— in alkyl may be replaced by —O— or —CH═CH— means that thealkyl may be alkoxyalkenyl or alkenyloxyalkyl. In addition, any one ofalkoxy, alkenylene, alkenyl, and alkylene in these groups may be linearor branched. However, in the present invention, adjacent —CH₂—, i.e.,(—CH₂—)₂ are not replaced by (—O—)₂. In addition, the term “carbonnumber” denotes a number of carbon atoms in the group.

Further, in the present invention, a structure in which four oxygen isbound to Si is referred to as Q structure, a structure in which threeoxygen is bound to Si is referred to as T structure, a structure inwhich two oxygen is bound to Si is referred to as D structure, and astructure in which one oxygen is bound to Si is referred to as Mstructure. Therefore, the term “T₈Q₂ structure” means a structureobtained by combining eight T structures and two Q structures.

According to the present invention, a polysiloxane compound having, onits main chain, a silsesquioxane skeleton having Q(T₈Q)_(n) structure orT₈(QT₈)_(n) structure can be obtained. Further, a polysiloxane compoundhaving, for example, M₂Q(T₈Q)_(n)M₂ structure, DT₈(QT₈)_(n)D structure,or M₂T₈(QT₈)_(n)M₂ structure can be obtained by capping the resultantpolysiloxane with a silicon compound containing a reactive group.Further, an organic-inorganic composite material can be produced byusing the resultant polysiloxane.

DESCRIPTION OF THE PREFERABLE EMBODIMENTS

In the following description, a silicon compound represented by theformula (1) may be represented as Compound (1), and a compoundrepresented by the formula (2) may be represented as Compound (2). Acompound represented by any other formula may also be simply representedin the same manner as that described above.

Hereinafter, the present invention will be described in more detail.

A polysiloxane provided by the present invention is represented by theformula (1) or (2).

In the formula (1) and (2):

R independently represents alkyl having 1 to 45 carbon atoms, cycloalkylhaving 4 to 8 carbon atoms, substituted or unsubstituted aryl, orsubstituted or unsubstituted arylalkyl.

The alkyl having 1 to 45 carbon atoms has preferably 1 to 30, or morepreferably 1 to 8 carbon atoms. In addition, optional hydrogen in thealkyl may be replaced by fluorine, and optional —CH₂— in the alkyl maybe replaced by —O—, —CH═CH—, or cycloalkylene.

Examples of the unsubstituted alkyl having 1 to 30 carbon atoms includemethyl, ethyl, propyl, 1-methylethyl, butyl, 2-methylpropyl,1,1-dimethylethyl, pentyl, hexyl, 1,1,2-trimethylpropyl, heptyl, octyl,2,4,4-trimethylpentyl, nonyl, decyl, undecyl, dodecyl, tetradecyl,hexadecyl, octadecyl, eicosyl, docosyl, and triacontyl.

Examples of fluorinated alkyl having 1 to 30 carbon atoms include a3,3,3-trifluoropropyl, 3,3,4,4,5,5,6,6,6-nonadecafluorohexyl,tridecafluoro-1,1,2,2-tetrahydrooctyl,heptadecafluoro-1,1,2,2-tetrahydrodecyl, perfluoro-1H,1H,2H,2H-dodecyl,and perfluoro-1H,1H, 2H, 2H-tetradecyl.

Examples of cycloalkyl having 4 to 8 carbon atoms include cyclohexyl,cyclopentyl, 2-bicycloheptyl, and cyclooctyl.

In the case where R in the formula (1) is substituted or unsubstitutedaryl, optional hydrogen may be replaced by halogen or alkyl having 1 to10 carbon atoms. Preferable examples of halogen include fluorine,chlorine, and bromine. In the alkyl having 1 to 10 carbon atoms,optional hydrogen may be replaced by fluorine, and optional —CH₂— may bereplaced by —O—, —CH═CH—, or phenylene. That is, preferable examples ofsubstituted or unsubstituted aryl represented by R include phenyl,alkylphenyl, alkyloxyphenyl, alkenylphenyl, phenyl having, as asubstituent, alkyl containing 1 to 10 carbon atoms in which optional—CH₂— is replaced by phenylene. In each of the groups listed here,optional hydrogen on benzene ring may be replaced by halogen. Note that“phenyl” in the present invention denotes unsubstituted phenyl if notspecified.

Examples of halogenated phenyl include pentafluorophenyl,4-chlorophenyl, and 4-bromophenyl. Examples of alkylphenyl include4-methylphenyl, 4-ethylphenyl, 4-propylphenyl, 4-butylphenyl,4-pentylphenyl, 4-heptylphenyl, 4-octylphenyl, 4-nonylphenyl,4-decylphenyl, 2,4-dimethylphenyl, 2,4,6-trimethylphenyl,2,4,6-triethylphenyl, 4-(1-methylethyl)phenyl,4-(1,1-dimethylethyl)phenyl, 4-(2-ethylhexyl)phenyl, and2,4,6-tris(1-methylethyl)phenyl. Examples of alkyloxyphenyl include4-methoxyphenyl, 4-ethoxyphenyl, 4-propoxyphenyl, 4-butoxyphenyl,4-pentyloxyphenyl, 4-heptyloxyphenyl, 4-decyloxyphenyl,4-octadecyloxyphenyl, 4-(1-methylethoxy)phenyl,4-(2-methylpropoxy)phenyl, and 4-(1,1-dimethylethoxy)phenyl. Examples ofthe alkenylphenyl include 4-ethenylphenyl, 4-(1-methylethenyl)phenyl,and 4-(3-butenyl)phenyl.

Examples of phenyl having, as a substituent, alkyl containing 1 to 10carbon atoms in which optional —CH₂— is replaced by phenylene include4-(2-phenylethenyl)phenyl, 4-phenyloxyphenyl, 3-phenylmethylphenyl,biphenyl, and terphenyl. 4-(2-phenylethenyl)phenyl is an example ofethylphenyl in which one —CH₂— is replaced by phenylene and another—CH₂— is replaced by —CH═CH—.

Examples of phenyl in which some of hydrogen on benzene ring is replacedby halogen and other hydrogen is replaced by alkyl, alkyloxyl, oralkenyl include 3-chloro-4-methylphenyl, 2,5-dichloro-4-methylphenyl,3,5-dichloro-4-methylphenyl, 2,3,5-trichloro-4-methylphenyl,2,3,6-trichloro-4-methylphenyl, 3-bromo-4-methylphenyl,2,5-dibromo-4-methylphenyl, 3,5-dibromo-4-methylphenyl,2,3-difluoro-4-methylphenyl, 3-chloro-4-methoxyphenyl,3-bromo-4-methoxyphenyl, 3,5-dibromo-4-methoxyphenyl,2,3-difluoro-4-methoxyphenyl, 2,3-difluoro-4-ethyoxyphenyl,2,3-difluoro-4-propoxyphenyl, and 4-ethenyl-2,3,5,6-tetrafluorophenyl.

When any one of R in the formula (1) represents substituted orunsubstituted arylalkyl, alkylene of the arylalkyl has 1 to 10 carbonatoms, optional hydrogen in the alkylene may be replaced by fluorine,and optional —CH₂— in the alkylene may be replaced by —O—, —CH═CH—, orcycloalkylene. A preferable example of the arylalkyl is phenylalkyl.

Specific examples of unsubstituted phenylalkyl include phenylmethyl,2-phenylethyl, 3-phenylpropyl, 4-phenylbutyl, 5-phenylpentyl,6-phenylhexyl, 11-phenylundecyl, 1-phenylethyl, 2-phenylpropyl,1-methyl-2-phenylethyl, 1-phenylpropyl, 3-phenylbutyl,1-methyl-3-phenylpropyl, 2-phenylbutyl, 2-methyl-2-phenylpropyl, and1-phenylhexyl.

In the phenylalkyl, optional hydrogen on benzene ring may be replaced byhalogen or alkyl having 1 to 10 carbon atoms. In the alkyl having 1 to10 carbon atoms, optional hydrogen may be replaced by fluorine, andoptional —CH₂— may be replaced by —O—, —CH═CH—, or phenylene.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by fluorine include 4-fluorophenylmethyl,2,3,4,5,6-pentafluorophenylmethyl, 2-(2,3,4,5,6-pentafluorophenyl)ethyl,3-(2,3,4,5,6-pentafluorophenyl)propyl, 2-(2-fluorophenyl)propyl, and a2-(4-fluorophenyl)propyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by chlorine include 4-chlorophenylmethyl,2-chlorophenylmethyl, 2,6-dichlorophenylmethyl,2,4-dichlorophenylmethyl, 2,3,6-trichlorophenylmethyl, a2,4,6-trichlorophenylmethyl, 2,4,5-trichlorophenylmethyl, a2,3,4,6-tetrachlorophenylmethyl, 2,3,4,5,6-pentachlorophenylmethyl,2-(2-chlorophenyl)ethyl, 2-(4-chlorophenyl)ethyl,2-(2,4,5-chlorophenyl)ethyl, 2-(2,3,6-chlorophenyl)ethyl,3-(3-chlorophenyl)propyl, 3-(4-chlorophenyl)propyl,3-(2,4,5-trichlorophenyl)propyl, 3-(2,3,6-trichlorophenyl)propyl, a4-(2-chlorophenyl)butyl, 4-(3-chlorophenyl)butyl,4-(4-chlorophenyl)butyl, 4-(2,3,6-trichlorophenyl)butyl,4-(2,4,5-trichlorophenyl)butyl, a 1-(3-chlorophenyl)ethyl,1-(4-chlorophenyl)ethyl, 2-(4-chlorophenyl)propyl,2-(2-chlorophenyl)propyl, and 1-(4-chlorophenyl)butyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by bromine include 2-bromophenylmethyl,4-bromophenylmethyl, 2,4-dibromophenylmethyl,2,4,6-tribromophenylmethyl, 2,3,4,5-tetrabromophenylmethyl,2,3,4,5,6-pentabromophenylmethyl, 2-(4-bromophenyl)ethyl,3-(4-bromophenyl)propyl, 3-(3-bromophenyl)propyl,4-(4-bromophenyl)butyl, 1-(4-bromophenyl)ethyl, 2-(2-bromophenyl)propyl,and 2-(4-bromophenyl)propyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by alkyl having 1 to 10 carbon atoms include2-methylphenylmethyl, 3-methylphenylmethyl, 4-methylphenylmethyl,4-dodecylphenylmethyl, (3,5-dimethylphenylmethyl,2-(4-methylphenyl)ethyl, 2-(3-methylphenyl)ethyl,2-(2,5-dimethylphenyl)ethyl, 2-(4-ethylphenyl)ethyl,2-(3-ethylphenyl)ethyl, 1-(4-methylphenyl)ethyl,1-(3-methylphenyl)ethyl, 1-(2-methylphenyl)ethyl,2-(4-methylphenyl)propyl, 2-(2-methylphenyl)propyl,2-(4-ethylphenyl)propyl, 2-(2-ethylphenyl)propyl,2-(2,3-dimethylphenyl)propyl, 2-(2,5-dimethylphenyl)propyl,2-(3,5-dimethylphenyl)propyl, 2-(2,4-dimethylphenyl)propyl,2-(3,4-dimethylphenyl)propyl, 2-(2,5-dimethylphenyl)butyl,4-(1-methylethyl)phenylmethyl, 2-(4-(1,1-dimethylethyl)phenyl)ethyl,2-(4-(1-methylethyl)phenyl)propyl, and2-(3-(1-methylethyl)phenyl)propyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by alkyl having 1 to 10 carbon atoms and hydrogen inthe alkyl is replaced by fluorine include 3-trifluoromethylphenylmethyl,2-(4-trifluoromethylphenyl)ethyl, 2-(4-nonafluorobutylphenyl)ethyl,2-(4-tridecafluorohexylphenyl)ethyl,2-(4-heptadecafluorooctylphenyl)ethyl, 1-(3-trifluoromethylphenyl)ethyl,1-(4-trifluoromethylphenyl)ethyl, 1-(4-nonafluorobutylphenyl)ethyl,1-(4-tridecafluorohexylphenyl)ethyl,1-(4-heptadecafluorooctylphenyl)ethyl,2-(4-nonafluorobutylphenyl)propyl,1-methyl-1-(4-nonafluorobutylphenyl)ethyl,2-(4-tridecafluorohexylphenyl)propyl,1-methyl-1-(4-tridecafluorohexylphenyl)ethyl,2-(4-heptadecafluorooctylphenyl)propyl, and1-methyl-1-(4-heptadecafluorooctylphenyl)ethyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by alkyl having 1 to 10 carbon atoms and —CH₂— in thealkyl is replaced by —CH═CH— include 2-(4-ethenylphenyl)ethyl,1-(4-ethenylphenyl)ethyl, and 1-(2-(2-propenyl)phenyl)ethyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by alkyl having 1 to 10 carbon atoms and —CH₂— in thealkyl is replaced by —O— include 4-methoxyphenylmethyl,3-methoxyphenylmethyl, 4-ethoxyphenylmethyl, 2-(4-methoxyphenyl)ethyl,3-(4-methoxyphenyl)propyl, 3-(2-methoxyphenyl)propyl,3-(3,4-dimethoxyphenyl)propyl, 11-(4-methoxyphenyl)undecyl,1-(4-methoxyphenyl)ethyl, (3-methoxymethylphenyl)ethyl, and3-(2-nonadecafluorodecenyloxyphenyl)propyl.

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by alkyl having 1 to 10 carbon atoms and one —CH₂— inthe alkyl is replaced by cycloalkylene include cyclopentylphenylmethyl,cyclopentyloxyphenylmethyl, cyclohexylphenylmethyl,cyclohexylphenylethyl, cyclohexylphenylpropyl, andcyclohexyloxyphenylmethyl (the case where another —CH₂— of the alkyl isreplaced by —O— is also included in these examples).

Specific examples of phenylalkyl in which optional hydrogen on benzenering is replaced by alkyl having 1 to 10 carbon atoms and one —CH₂— inthe alkyl is replaced by phenylene include 2-(4-phenoxyphenyl)ethyl,2-(4-phenoxyphenyl)propyl, 2-(2-phenoxyphenyl)propyl,4-biphenylylmethyl, 3-biphenylylethyl, 4-biphenylylethyl,4-biphenylylpropyl, 2-(2-biphenylyl)propyl, and 2-(4-biphenylyl)propyl(the case where another —CH₂— of the alkyl is replaced by —O— is alsoincluded in these examples).

Specific examples of phenylalkyl in which at least two hydrogen ofbenzene ring is replaced by different groups include3-(2,5-dimethoxy-3,4,6-trimethylphenyl)propyl,3-chloro-2-methylphenylmethyl, 4-chloro-2-methylphenylmethyl,5-chloro-2-methylphenylmethyl, 6-chloro-2-methylphenylmethyl,2-chloro-4-methylphenylmethyl, 3-chloro-4-methylphenylmethyl,2,3-dichloro-4-methylphenylmethyl, 2,5-dichloro-4-methylphenylmethyl,3,5-dichloro-4-methylphenylmethyl, 2,3,5-trichloro-4-methylphenylmethyl,2,3,5,6-tetrachloro-4-methylphenylmethyl,2,3,4,6-tetrachloro-5-methylphenylmethyl,2,3,4,5-tetrachloro-6-methylphenylmethyl,4-chloro-3,5-dimethylphenylmethyl, 2-chloro-3,5-dimethylphenylmethyl,2,4-dichloro-3,5-dimethylphenylmethyl,2,6-dichloro-3,5-dimethylphenylmethyl,2,4,6-trichloro-3,5-dimethylphenylmethyl, 3-bromo-2-methylphenylmethyl,4-bromo-2-methylphenylmethyl, 5-bromo-2-methylphenylmethyl,6-bromo-2-methylphenylmethyl, 3-bromo-4-methylphenylmethyl,2,3-dibromo-4-methylphenylmethyl, 2,3,5-tribromo-4-methylphenylmethyl,2,3,5,6-tetrabromo-4-methylphenylmethyl, and11-(3-chloro-4-methoxyphenyl)undecyl.

In addition, particularly preferable examples of phenyl in phenylalkylinclude: unsubstituted phenyl; and phenyl having as a substituent atleast one of fluorine, alkyl having 1 to 4 carbon atoms, ethenyl, andmethoxy. Specific examples of phenylalkyl in which —CH₂— of alkylene isreplaced by —O—, —CH═CH—, or cycloalkylene include 3-phenoxypropyl,1-phenylethenyl, 2-phenylethenyl, 3-phenyl-2-propenyl,4-phenyl-4-pentenyl, 13-phenyl-12-tridecenyl, phenylcyclohexyl, andphenoxycyclohexyl. Examples of phenylalkenyl in which hydrogen onbenzene ring is replaced by fluorine or methyl include4-fluorophenylethenyl, 2,3-difluorophenylethenyl,2,3,4,5,6-pentafluorophenylethenyl, and 4-methylphenylethenyl.

Of these groups, preferable R is selected from the group consisting ofalkyl having 1 to 45 carbon atoms, substituted or unsubstituted phenyl,and substituted or unsubstituted phenylalkyl. Amore preferable exampleof R is selected from the group consisting of substituted orunsubstituted phenyl and substituted or unsubstituted phenylalkyl.

Alkylene of the substituted or unsubstituted phenylalkyl has preferably1 to 8 carbon atoms, optional hydrogen on benzene ring in thephenylalkyl may be replaced by fluorine or alkyl having 1 to 4 carbonatoms, and optional —CH₂— in the alkylene may be replaced by —O—,—CH═CH—, or cycloalkylene.

When phenyl in each of these groups has multiple substituents, thesubstituents may be identical to or different from each other. Inaddition, all of R's in the formula (1) is preferably the same groupselected from these preferable examples.

Still more preferable examples of R include phenyl, halogenated phenyl,phenyl having at least one methyl, methoxyphenyl, phenylmethyl,phenylethyl, phenylbutyl, 2-phenylpropyl, 1-methyl-2-phenylethyl,pentafluorophenylpropyl, 4-ethylphenylethyl, 3-ethylphenylethyl,4-(1,1-dimethylethyl)phenylethyl, 4-ethenylphenylethyl,1-(4-ethenylphenyl)ethyl, and 4-methoxyphenylpropyl. Of these, phenyl isparticularly preferable.

Next, m in the formula (1) will be explained. m represents an integer of1 to 1,000, or preferably 1 to 100.

When m represents 1, R¹ is independently selected from the groupconsisting of hydroxyl, alkoxy, acetoxy, and —OSi(A)₃.

When m represents 2 to 1,000, R¹ is independently selected from thegroup consisting of hydrogen, hydroxyl, halogen, alkoxy, acetoxy,—OSi(A)₃, and a group defined in the same manner as R.

When any one of R¹'s represents —OSi(A)₃, A independently representshydrogen; alkyl having 1 to 10 carbon atoms in which optional hydrogenmay be replaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto; or phenyl. Optional —CH₂— inthe alkyl may be replaced by —O—, —CH═CH— or phenylene. It should benoted that hydrogen of each of hydroxyl, carboxyl, amino group, andmercapto may be replaced by, for example, trimethylsilyl.

It should be noted that two of A's may form dicarboxylic anhydride.

n in the formula (2) represents an integer of 1 to 1,000, and preferably1 to 100. R² is independently selected from the group consisting ofhydrogen and —Si(A)₃.

When any one of R²'s represents —OSi (A)₃, A independently representshydrogen; alkyl having 1 to 10 carbon atoms in which optional hydrogenmay be replaced by hydroxyl, halogen, carboxyl, ester,2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate, oxiranyl,3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto; or phenyl. Optional —CH₂— inthe alkyl may be replaced by —O—, —CH═CH— or phenylene. It should benoted that hydrogen of each of hydroxyl, carboxyl, amino group, andmercapto may be replaced by, for example, trimethylsilyl. It should benoted that two of A's may form dicarboxylic anhydride.

To be specific, A is independently selected from the followings.

In these formula, ma represents an integer of 2 to 10, na represents aninteger of 0 to 15, q represents an integer of 2 or 3, r represents aninteger of 2 to 200, t represents an integer of 1 to 3, and E representshydrogen or alkyl having 1 to 4 carbon atoms. In the above examples,each of —CF₃ is bound to benzene ring at an optional position. rrepresents an integer of preferably 2 to 100, more preferably 2 to 20.

Particularly preferable examples of the polysiloxane represented by theformula (1) or (2) include the following compounds; provided that thecompound of the present invention is not limited to the followingcompounds.

It should be noted that A in the formula (1-3) represents a groupdefined in the same manner as A in —Si (A)₃ of the above formula (1) and(2). In the formula (1-1), (1-2), (1-3), (1-4) and (1-6), m representsan integer of 1 to 1,000. In the formula (1-5), m represents an integerof 2 to 1,000.

Next, a method of producing a compound in which any one of R¹'s in theformula (1) is alkoxy, acetoxy, halogen, or hydroxyl will be described.

Such compound can be represented as a formula (1-a) or (1-b) shown inthe following reaction formula (1), and can be obtained by reacting acompound represented by the formula (1-0-1) which is obtainable by themethod disclosed by the inventors of the present invention (JapanesePatent Application Laid-open No. 2006-182650) with a silane compoundrepresented by the formula (1-0-2) which is commercially available, inan organic solvent in such a manner that a mixing ratio of the number ofmoles (N) of Compound (1-0-2) to the number of moles (M) of Compound(1-0-1) is not less than 1, and preferably 1 to 10.

The organic solvent that can be used in the reaction is not particularlylimited as long as the solvent does not inhibit the progress of thereaction. Examples of a preferable organic solvent include: ethers suchas diethyl ether, tetrahydrofuran (THF), and dioxane; and esters such asmethyl acetate, ethyl acetate, and butyl acetate. One kind thereof maybe used alone, or two or more kinds thereof may be used in combination.

The volume of the organic solvent is not particularly limited in thepresent invention, but the volume is preferably such that the solidcontent concentration of a reaction solution is 1% to 50% inconsideration of the efficient production of the compound.

Here, X in the formula (1-0-2) independently represents a group capableof reacting with silanol, and specifically represents halogen, alkoxy,or acetoxy. Specific examples of the Compound (1-0-2) includetetramethoxysilane, tetraethoxysilane, tetraisopropoxysilane,tetrachlorosilane, tetrabromosilane, tetraiodosilane, andtetraacetoxysilane. Of these, tetrachlorosilane and tetraacetoxysilaneare preferable because these compounds are easily commerciallyavailable.

Then, Compound (1-a) thus obtained is hydrolyzed by using an acid suchas hydrochloric acid, acetic acid, or sulfuric acid as a catalyst asrequired, thereby Compound (1-b) can be obtained.

Next, a method of producing Compound (1-c) in which: any one of R¹'s inthe formula (1) represents —OSi (A)₃; whereby A independently represents(i) hydrogen (bound to Si), (ii) alkyl having 1 to 10 carbon atoms inwhich optional hydrogen may be replaced by hydroxyl, halogen, carboxyl,ester, 2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group, isocyanate,oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl, (meth)acryloyl,4-vinylphenyl, alkyleneoxy, or mercapto and optional —CH₂— in the alkylmay be replaced by —O—, —CH═CH— or phenylene, or (iii) phenyl will bedescribed.

Such compound can be obtained by reacting Compound (1-b) with Compound(1-0-3) in organic solvent preferably in the presence of tertiary amine(NR₃) as shown in the formula (II).

Organic solvent to be used for the reaction is not particularly limitedas long as it does not inhibit the progress of the reaction. Examples ofpreferable solvent include: aliphatic hydrocarbons such as hexane andheptane; aromatic hydrocarbons such as benzene, toluene, and xylene;ethers such as diethyl ether, tetrahydrofuran (THF), and dioxane;halogenated hydrocarbons such as methylene chloride and carbontetrachloride; and esters such as ethyl acetate. Of these, organicsolvents such as aromatic hydrocarbons and ethers are more preferableand toluene and THF are still more preferable.

Further, the reaction can be easily promoted by adding tertiary aminesuch as triethylamine. The addition amount of the tertiary amine is notparticularly limited as long as the reaction can be progressed, but theaddition amount of triethylamine is, for example, 0.1 to 10 fold moles,or preferably 1 to 5 fold moles with respect to Compound (1-0-3).

Next, a method of producing Compound (1) in which: any one of R¹'s inthe formula (1) represents —OSi(A)₃ whereby at least one of A'sindependently represents (i) alkyl having 2 to 10 carbon atoms in whichoptional hydrogen may be replaced by hydroxyl, halogen, ester, cyano,vinyl, acetoxy, (meth)acryloyl, carboxyl, amino group, isocyanate,oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, mercapto,2,4-dioxo-3-oxacyclopentyl, or alkyleneoxy and optional —CH₂— in thealkyl may be replaced by —O—, —CH═CH— or phenylene, or (ii) phenyl; andthe remaining of A's independently represent alkyl having 1 to 10,phenyl or phenylalkyl carbon atoms will be described.

As shown below, such compound can be obtained through two steps. Atfirst, Compound (1-c) in which at least one of A's represents hydrogenand the remaining of A's represent alkyl having 1 to 10 carbon atoms,phenyl or phenylalkyl is synthesized by reacting Compound (1-b) withCompound (1-0-3) in which at least one of A's represents hydrogen andthe remaining of A's independently represent alkyl having 1 to 10 carbonatoms, phenyl, or phenylalkyl in the same manner as the above-mentionedmethod.

Specific examples of “Compound (1-0-3) in which at least one of A'srepresents hydrogen and the remaining of A's independently representalkyl having 1 to 10 carbon atoms or phenyl” includedimethylchlorosilane, diethylchlorosilane, methylethylchlorosilane,methylhexylchlorosilane, diisopropylchlorosilane,di-t-butylchlorosilane, dicyclopentylchlorosilane,dicyclohexylchlorosilane, dinormaloctylchlorosilane,methylphenylchlorosilane, and diphenylchlorosilane.

Secondly, as shown in a formula (III), Compound (1-c) obtained in thefirst step is reacted with Compound (1-0-5) as shown below in organicsolvent in the presence of hydrosilylation catalyst, thereby Compound(1-d) is obtained.

In the formula (1-0-5), A¹ represents alkyl having 1 to 8 carbon atomswhereby optional hydrogen may be replaced by hydroxyl; halogen;carboxyl; ester; 2,4-dioxo-3-oxa-cyclopentyl; acetoxy; amino group;isocyanate; oxiranyl; 3,4-epoxycyclohexyl; oxetanyl; cyano; vinyl;(meth)acryloyl; 4-vinylphenyl; alkyleneoxy; or mercapto; and optional—CH₂— in the alkyl may be replaced by —O—, —CH═CH— or phenylene. Itshould be noted that hydrogen of each of hydroxyl, carboxyl, aminogroup, and mercapto may be replaced by, for example, trimethylsilyl.

R in the formula (1-d) represents a group defined in the same manner asR in the formula (1-c). At least one of A²'s represents —CH₂CH₂A¹, andthe remaining of A²'s represent are independently selected from alkylhaving 1 to 10 carbon atoms, phenyl, and phenylalkyl.

Examples of the compound represented by (1-0-5) having both of hydroxyland alkenyl include allyl alcohol, 3-buten-1-ol, 3-buten-2-ol,ethyleneglycol monovinylether, ethyleneglycol monoallylether,diethyleneglycol monoallylether, glycerine monoallylether,trimethylolethane monoallylether, trimethylolpropane monoallylether,polyethyleneglycol monoallylether, polypropyleneglycol monoallylether,1-ethenyl-cyclobutanol, 2-ethenyl-cyclobutanol, 3-ethenyl-cyclobutanol,vinylphenol, 2-allylphenol, 4-allylphenol, 4-allyl-2-methoxyphenol,4-allyl-2,6-dimethoxyphenol, 4-(2-propenyl)-1,2-benzenediol, and4-(2,4-dihydroxyphenyl)-3-butene-2-one. The hydroxyl of these compoundsmay be protected as cyclic or branched-chain carbonyl having 3 to 30carbon atoms, ester, ether, acetal, ketal, or silylether. Of thesecompounds, preferable are allylalcohol, ethyleneglycol monoallylether,glycerine monoallylether, trimethylolpropane monoallylether,2-allylphenol, and 4-allylphenol because of easily availability.

Examples of the compound represented by (1-0-5) having carboxyl andalkenyl include (meth)acrylic acid, crotonic acid, isocrotonic acid,vinyl acetate, 3-butenoic acid, 2-methyl-3-butenoic acid,2,2-dimethyl-3-butenoic acid, 2-n-propyl-3-pentenoic acid, 4-pentenoicacid, 3-methyl-4-pentenoic acid, 2,2-dimethyl-4-pentenoic acid,3,3-dimethyl-4-pentenoic acid, 4-hexenoic acid, 5-hexenoic acid,2,6-heptadienoicacid, 7-octenoicacid, 8-nonenoicacid, 9-decenoic acid,10-undecenoic acid, 11-dodecenoic acid, propiolic acid, 2-butynoic acid,maleic acid, fumaric acid, acethylene carboxylic acid, 2-vinyl benzoate,3-vinyl benzoate, 4-vinyl benzoate, and 4-allyl-2,3,5,6-tetrafluorobenzoate. Herein, (meth)acrylic acid refers to acrylic acid andmethacrylic acid. The carboxyl group of these compounds may be protectedas ester, or trialkyl silyl. Of these compounds, preferable are(meth)acrylic acid, vinylacetate, 4-pentenoic acid, 10-undecenoic acid,and 4-vinyl benzoate because of easily availability.

Examples of the compound represented by (1-0-5) having both ofisocyanate and alkenyl include vinyl isocyanate, allyl isocyanate,3-isocyanate-2-methyl-1-propene, methacryloyl isocyanate, isocyanateethylmethacrylate, vinylbenzyl isocyanate, 3-isocyanate-1-butene,3-isocyanate-3-methyl-1-butene, 4-isocyanate-2-methyl-1-butene,4-isocyanate-3,3-dimethyl-1-butene, 4-isocyanate-4-methyl-1-pentene, and5-isocyanate-1-pentene. Of these compounds, preferable are vinylisocyanate, allyl isocyanate, and methacryloyl isocynate because ofeasily availability.

Examples of the compounds represented by (1-0-5) having both of oxiranyland alkenyl include allylglycidyl ether, 2-methylallylglycidyl ether,vinylglycidyl ether, glycideyl maleate, glycidyl itaconate, glycidylacrylate, glycidyl methacrylate, 1,2-epoxy-6-heptene,1,2-epoxy-3-butene, 2-cyclohexene-1-glycidyl ether,cyclohexene-4,5-glycidylcarboxylate, cyclohexene-4-glycidyl carboxylate,5-norbornene-2-methyl-2-glycidyl carboxylate, andendocis-bicyclo[2.2.1]-5-heptene-2,3-diglycidyl dicarboxylate.Preferable is allyl glycidyl ether because of easily availability.

Examples of Compound (1-0-5) having mercapto and alkenyl include allylmercaptan and 2-methyl-2-propene-1-thiol.

Examples of Compound (1-0-5) having 2,4-dioxo-3-oxacyclopentyl andalkenyl include allylsuccinic anhydride, isobutylsuccinic anhydride,isobutenylsuccinic anhydride,bicyclo[2.2.2]octo-7-ene-2,3,5,6-tetracarboxylic dianhydride, and5-norbornene-2,3-dicarboxylic anhydride. Of these compounds,allylsuccinic anhydride and 5-norbornene-2,3-dicarboxylic anhydride arepreferable in consideration of easy availability.

The compound represented by compound (1-0-5) having alkyleneoxy andalkenyl is commercially available from NOF CORPORATION and the like. Inthe case of polyethylene glycol monoallyl ether, UN10×PKA-5001,PKA-5002, PKA-5003, PKA-5004, and PKA-5005 are exemplified. In the caseof methoxypolyethylene glycol allylether, UN10×PKA-5006, PKA-5007,PKA-5008, PKA-5009, and PKA-5010 are exemplified. In the case ofpolypropylene glycol monoallylether, UNISAFE PKA-5014 is exemplified. Inthe case of polyethylene glycol polypropylene glycol allylether, UNISAFEPKA-5011, PKA-5012, and PKA-5013 are exemplified. If there is nocommercially available product for some compounds, allylether havingalkyleneoxy can be obtained by reacting polyalkylene glycol or monoethercompound thereof with sodium hydride to produce sodium alcoholate,thereby reacting it with allylbromide.

Examples of Compound (1-0-5) having amino group and alkenyl includeallylamine, butenylamine, hexenylamine, octenylamine, and decenylamine.

Examples of compound (1-0-5) containing oxcetanyl and alkenyl include3-vinyl oxcetane, 3-methyl-3-vinyl oxcetane, 3-ethyl-3-vinyl oxcetane,3-allyloxcetane, 3-allyl-3-methyloxcetane, 3-allyl-3-ethyloxcetane,[(3-oxcetanyl)methyl]vinyl ether, [(3-methyl-3-oxcetanyl)methyl]vinylether, [(3-ethyl-3-oxcetanyl)methyl]vinyl ether, 3-allyloxymethyloxcetane, 3-allyloxymethyl-3-methyloxcetane,3-allyloxymethyl-3-ethyloxcetane, 3-allyloxyethyl oxcetane,3-allyloxyethyl-3-methyloxcetane, and 3-allyloxyethyl-3-ethyloxcetane.Particularly preferable are 3-allyloxymethyl oxcetane,3-allyloxymethyl-3-methyloxcetane, 3-alyloxymethyl-3-ethyloxcetane,3-allyloxymethyloxcetane, 3-allyloxyethyl-3-methyloxcetane, and3-allyloxyethyl-3-ethyloxcetane.

The above-mentioned first step of obtaining Compound (1-c) may beperformed by a method involving reacting Compound (1-a) with Compound(1-0-4) shown below or by a method involving reacting Compound (1-a′)with Compound (1-0-4).

One of Compounds (1-0-5) having any one of the above-mentionedfunctional groups and alkenyl is allowed to react with Compound (1-c) inwhich at least one of A's represents hydrogen and the remaining of A'sindependently represent alkyl having 1 to 10 carbon atoms or phenyl,thereby Compound (1-d) in which at least one of A's represents—CH₂CH₂A′, and the remaining of A's independently represent alkyl having1 to 10 carbon atoms or phenyl is obtained. Reacting at least two kindsof Compounds (1-0-5) each having any one of the functional groups withCompound (1-c) in which at least two of A represents hydrogen sufficesfor the synthesis of Compound (1-d) having at least two differentfunctional groups. In this case, Compound (1-d) can be obtained byreacting two kinds of Compounds (1-0-5) having the functional group withCompound (1-c) in mixture or by reacting the first Compound (1-0-5) andthe second Compound (1-0-5) with Compound (1-c) sequentially inconsideration of a difference in reactivity of the two kinds ofCompounds (1-0-5).

A solvent to be used in the hydrosilylation reaction between Compound(1-c) in which at least one of A's represents hydrogen and the remainingof A's independently represent alkyl having 1 to 10 carbon atoms orphenyl and Compound (1-0-5) having the functional group is notparticularly limited as long as the solvent does not inhibit thereaction. Preferable examples of the solvent include: aliphatichydrocarbons such as hexane and heptane; aromatic hydrocarbons such asbenzene, toluene, and xylene; ethers such as diethyl ether,tetrahydrofuran (THF), and dioxane; halogenated hydrocarbons such asmethylene chloride and carbon tetrachloride; and esters such as methylacetate and ethyl acetate. Each of these solvents may be used alone, ortwo or more thereof may be used in combination. Of these solvents, thearomatic hydrocarbons are preferable, and, of the aromatic hydrocarbons,toluene is particularly preferable.

Although the reaction between Compound (1-c) and Compound (1-0-5) havingthe functional group does not necessarily require a solvent, solvent, ifused, is prepared so as to have a concentration of preferably 0.05 to 80wt %, or more preferably 30 to 70 wt %.

The ratio of Compound (1-0-5) having the functional group with respectto Compound (1-c) varies depending on purposes. For example, when eachof all SiH groups of Compound (1-c) is allowed to react with Compound(1-0-5), the number of moles of Compound (1-0-5) must be equal to orlarger than the number of moles of SiH groups of Compound (1-c). Inaddition, when part of —SiH groups are left, the number of moles of theCompound (1-0-5) having the functional group has only to be equal to orsmaller than the number of moles of Compound (1-c).

The reaction may be performed at room temperature, or may be performedunder heating so that the reaction is promoted. In addition, thereaction system may be cooled as required for controlling a secondaryreaction due to heat of the reaction.

Next, hydrosilylation catalyst to be used in the hydrosilylationreaction in the present invention will be described. A compoundcontaining a transition metal such as platinum, rhodium, or palladium,which is generally commercially available, can be used as thehydrosilylation catalyst. Preferable examples of the hydrosilylationcatalyst include Karstedt catalyst, Spier catalyst, andhexachloroplatinic acid; these compounds are well known in the technicalfield.

The hydrosilylation catalyst to be added has only to be used in such anamount that the transition metal in the catalyst accounts for 10⁻⁹ to 1mol % of the SiH groups; and preferable addition amount is 10⁻⁷ to 10⁻³mol %.

As shown in the following formula (IV), another method of producingCompound (1-c) involves reacting Compound (1-a) with Compound (1-0-4).

A in the formula (1-0-3), (1-0-4), and (1-c) each represent a groupdefined in the same manner as A in —OSi (A)₃ of R¹ or R² of the formula(1) or (2).

In addition, a compound represented by the formula (2-a) can be obtainedby reacting Compound (1-0-1) with Compound (1-0-2) in such a manner thata ratio of the number of moles (N) of Compound (1-0-2) to the number ofmoles (M) of Compound (1-0-1) is 1 or less, or preferably 0.1 to 1 asshown in the following formula (V). Then, Compound (2-b) can be obtainedfrom thus obtained Compound (2-a) in the same manner as in the formula(II) or (III).

The following procedure may be adopted: after Compound (1-0-1) andCompound (1-0-2) have been reacted with each other at a ratio N/M ofmore than 1 to provide Compound (1-a), Compound (1-a) is allowed toreact with Compound (1-0-1), or after Compound (1-0-1) and Compound(1-0-2) have been allowed to react with each other at a ratio M/N ofmore than 1 to provide Compound (2-a), Compound (2-a) is allowed toreact with Compound (1-0-2). Further, such reactions may be alternatelyrepeated.

It should be noted that a reaction similar to that described above canbe performed by reacting Compound (1-0-1′) instead of Compound (1-0-1)with Compound (1-0-2′). In a formula (1-0-1′), M represents alkalimetal, and preferably sodium or potassium.

In this case, Compound (1-a′) shown below or Compound (2-a) shown aboveis obtained.

In this case, X′ in the formula (1-a′) and (1-0-2′) represent halogen,and preferably chlorine. In addition, a reaction for synthesizingCompound (1-c) from Compound (1-b) and for synthesizing Compound (2-b)from Compound (2-a) can be performed in the same manner as in the methodof obtaining Compound (1-c) from Compounds (1-b) and (1-0-3) representedby the above-mentioned reaction formula (II) and the method of obtainingCompound (2-b) from Compounds (2-a) and (1-0-3) represented by theabove-mentioned reaction formula (VI), respectively.

In addition, Compound (1-d) can also be obtained by performing suchreaction as shown below. Here, A represents a group defined in the samemanner as A in —OSi(A)₃ of the formula (1) and (2), and X represents agroup capable of reacting with silanol such as halogen, alkoxy, oracetoxy. Specific examples of Compound (1-0-6) include dichlorosilaneand dichlorodiphenylsilane.

The above-mentioned reaction between the compound represented by theformula (1-0-1) and the compound represented by the formula (1-0-2) canbe performed in an organic solvent. The above-mentioned reaction betweenthe compound represented by the formula (1-0-1′) and the compoundrepresented by the formula (1-0-2′) can be performed in an organicsolvent.

An organic solvent to be used for production of the polysiloxane of thepresent invention can be used as long as the organic solvent does notinhibit the progress of the reaction for the production. Specificexamples of the organic solvent include: aromatic hydrocarbons such asbenzene, toluene, and xylene; aliphatic hydrocarbons such as hexane andheptane; alcohols such as methanol, ethanol, n-propanol, andiso-propanol; ethers such as dimethyl ether, diethyl ether,tetrahydrofuran, and 1,4-dioxane; acetates such as methyl acetate, ethylacetate, and butyl acetate; amides such as N,N-dimethylformamide,N,N-dimethylacetamide, and N-methyl-2-pyrrolidone; ketones such asacetone, 2-butanone, and methyl-iso-butyl ketone; acetonitrile; anddimethyl sulfoxide. Of those, tetrahydrofuran and the acetates arepreferable because each of them can dissolve a raw material and aproduct. In addition, the volume of the organic solvent, which is notparticularly limited in the present invention, is 0.01 to 100 parts byweight with respect to 1 part by weight of Compound (1-0-1). Thereaction may be performed at room temperature, or may be performed underheating so that the reaction is promoted. When heat generation due tothe reaction is not preferable, the reaction system may be cooled forthe purpose of controlling the reaction.

A polysiloxane in which silsesquioxanes and Q structures are alternatelybound [represented by each of the formula (1-a) and (2-a)] can beproduced by such reaction.

Next, a method of capping the resultant polysiloxane [represented byeach of the formula (1-a) and (2-a)] with a chlorosilane having a groupwill be described. A polysiloxane having a reactive group represented byeach of the formula (1) and (2) can be produced by applying aconventionally well-known method for reacting silanol and thechlorosilane with each other.

A polymer obtained by the present invention, that is, the polymer beingobtained by introducing a skeleton having a cage-type structure to themain chain of the polymer, is assumed to have improved heat resistanceand improved physical strength because rigidity is imparted to thepolymer by virtue of restriction on the movement of the main chain. Inaddition, the polymer is expected to have high optical permeabilitybecause of the specificity of its structure. In addition, the polymer ofthe present invention can be utilized in a wide variety of applicationsbecause the polymer is expected to be excellent in, for example,solubility, heat resistance, mechanical strength, optical permeability,gas permeability, dielectric constant, flame retardancy, adhesiveness,and processability. Examples of expected applications of the polymer toelectrical and electronic materials include: coating agents forsubstrates, such as a metal elution-preventing film, a gas barrier film,and an antireflection film; coating agents for semiconductors, such as aliquid sealing agent and an interlayer insulator; optical elements suchas a microlens, a light-guiding plate, and an optical waveguidematerial; display substrates; and substrates for printed wiring. Inaddition, the polymer may be blended with any other components such asan antioxidant, a colorant, and a filler before use as required to suchan extent that the initial properties of the polymer are not impaired.

EXAMPLES

Hereinafter, the present invention will be described in more detail byshowing examples. However, the present invention is not limited to theseexamples. It should be noted that “Ph” and “Me” in the formula describedin the examples represent “phenyl” and “methyl”, respectively. Inaddition, a nuclear magnetic resonance spectrum was measured by usingheavy tetrahydrofuran as a solvent and tetramethylsilane as an internalstandard substance at room temperature unless otherwise stated.

Synthesis Example 1 Synthesis of Compound (3-1)

Phenyltrimethoxysilane (6.54 kg), sodium hydroxide (0.88 kg), water(0.66 kg), and 2-propyl alcohol (26.3 liters) were loaded into areaction vessel equipped with a reflux condenser, a temperature gauge,and a dropping funnel. In a stream of nitrogen, the heating of themixture was initiated while the mixture was stirred. After the stirringhad been continued for 6 hours from the initiation of reflux, themixture was left at rest at room temperature overnight. Then, thereaction mixture was transferred to a filter, and was filtered whilebeing pressurized with nitrogen gas. The resultant solid was washed with2-propyl alcohol once and filtered, and then the filtrate was driedunder reduced pressure at 80° C., whereby a white solid (3.3 kg) wasobtained. The solid was defined as Compound (3-1).

Synthesis Example 2 Synthesis of Compound (3-2)

Compound (3-1) obtained in Synthesis Example 1 (162 g) and ethyl acetate(1,400 ml) was loaded into a reaction vessel equipped with a droppingfunnel, a temperature gauge, and a stirring machine, and the mixture wasstirred. In a stream of nitrogen, the reaction mixture was cooled so asto have a temperature of 5° C. Then, acetic acid (42 g) was dropped tothe reaction mixture while the temperature of the reaction mixture waskept at 15° C. or lower, and the mixture was subjected to a reaction for1 hour. Next, acetic acid was neutralized with a saturated aqueoussolution of sodium hydrogen carbonate (100 g). After that, the reactionmixture was washed with ion-exchanged water and treated with 1Nhydrochloric acid (10 g), and was then washed with ion-exchanged waterso as to be neutral. The resultant organic phase was concentrated underreduced pressure at 50° C., methyl acetate (180 ml) was added to theresidue, and the mixture was stirred at room temperature for 2 hours.After that, the mixture was filtered, thereby a white solid wasobtained. The resultant white solid was dried under reduced pressure at50° C., thereby Compound (3-2) as a powdery white solid (116 g) wasobtained.

¹H NMR δ; 7.11-7.59 (m, 40H).

²⁹Si NMR δ; −79.22, −69.11.

Example 1 Synthesis of Compound (1-2-1)

56 g (52 mmol) of Compound (3-2) obtained in Synthesis Example 2, 42 g(159 mmol) of tetraacetoxysilane, and 900 ml of ethyl acetate wereloaded into a 2-L three-necked flask equipped with a reflux condenser, atemperature gauge, and a stirring device. In a stream of nitrogen, themixture was heated to 60° C. while being stirred. After having beensubjected to a reaction for 5 hours, the mixture was cooled to roomtemperature. 100 g of water were charged into the mixture, followed bystirring. After a solid had been filtered, the residue was concentratedat 50° C., thereby about 850 ml of the residue were removed bydistillation. Then, the resultant reaction mixture was filtered, therebya solid was obtained. The resultant solid was dried under reducedpressure at 70° C. for 2 hours, thereby 49 g of Compound (1-2-1) as awhite solid were obtained.

¹H NMR δ (ppm); 6.15 (s, 4H), 7.09-7.70 (m, 40H). ²⁹Si NMR δ (ppm);−89.8, −79.28, −78.75.

Example 2 Synthesis of Compound (1-4-1)

23 g (240 mmol) of chlorodimethylsilane and toluene (400 ml) were loadedinto a 1-L four-necked flask equipped with a reflux condenser, atemperature gauge, a dropping funnel, and a stirring device. In a streamof nitrogen, 22 g (216 mmol) of triethylamine were dropped to themixture while the mixture was stirred. Next, 48 g (40 mmol) of Compound(1-2-1) were dissolved in ethyl acetate (210 ml), and the solution wasdropped to the reaction mixture so that the temperature of the reactionmixture should be kept at 35° C. or lower. After the mixture had beencontinuously subjected to a reaction for 3 hours, water (50 g) was addedto the mixture, and followed by continuous stirring for 30 minutes.Then, the mixture was separated into an organic phase and an aqueousphase with a separating funnel. The resultant organic phase was washedwith water so as to be neutral, and was then dried with anhydrousmagnesium sulfate. Next, anhydrous magnesium sulfate was removed byfiltration, and then the residue was concentrated under reduced pressureat 50° C. Methyl alcohol (120 ml) was added to the resultant residue,and the mixture was stirred for 4 hours. After that, the mixture wasfiltered, thereby a solid was obtained. The resultant white solid wasdried under reduced pressure at 70° C. for 2 hours, thereby Compound(1-4-1) as a white solid was obtained.

¹H NMR δ (ppm); 0.11 (s, 24H), 4.70-4.73 (m, 4H), 7.15-7.58 (m, 40H).

²⁹Si NMR δ (ppm); −106.22, −79.38, −78.95, −3.04.

Example 3 Synthesis of Compound (1-5-1)

47 g (33 mmol) of Compound (1-4-1) synthesized in Example 2, 23 g (202mmol) of allylglycidylether, and toluene (70 g) were loaded into a200-ml four-necked flask equipped with a reflux condenser, a temperaturegauge, a dropping funnel, a septum cap made of silicon, and a stirrer.In a stream of nitrogen, the mixture was heated to 40° C. while beingstirred. A Karstedt's catalyst (20 μl) was added to the mixture with amicrosyringe to initiate the reaction. After the completion of heatgeneration had been confirmed, the mixture was heated to be brought intoa reflux state. The mixture was subjected to a reaction for 3 hours, andthen part of the reaction mixture was sampled and subjected to infraredabsorption spectral analysis. The disappearance of a peak at 2138 cm⁻¹originating from Si—H group was confirmed, and the time point of thedisappearance was defined as the end point of the reaction. Then, thereaction mixture was concentrated under reduced pressure at 120° C. for1 hour and at 130° C. for 1 hour, thereby 62 g of a viscous liquid wereobtained. The resultant viscous liquid was dissolved in methyl acetate(250 ml), and then powdery active carbon (1.3 g) was added to thesolution. After having been stirred at 40° C. for 1 hour, the mixturewas filtered, thereby active carbon was removed. The resultant reactionmixture was concentrated under reduced pressure at 80° C., thereby acolorless, transparent, viscous liquid (61 g) was obtained. Next, theresultant viscous liquid was dissolved in ethyl acetate (40 ml), and thesolution was reprecipitated from n-heptane (1,200 ml). The producedsolid was filtered, and then the residue was dried under reducedpressure at 40° C. for 3 hours, thereby Compound (1-5-1) as a whitesolid (55 g) was obtained.

¹H NMR (CDCl₃): δ (ppm); 0.04 (s, 24H), 0.48-0.52 (m, 8H), 1.46-1.53 (m,8 H), 2.46 (dd, 4H), 2.67 (t, 4H), 2.96-3.00 (m, 4H), 3.09-3.17 (m,12H), 3.45 (dd, 4H), 7.18 (t, 8H), 7.25 (t, 8H), 7.33 (t, 4H), 7.39 (t,4H), 7.43 (d, 8 H), 7.57 (d, 8H).

²⁹Si NMR (CDCl₃): δ (ppm); −106.95, −79.38, −79.12, 11.45

Example 4 Synthesis of Compound (1-6-1)

1.0 g (0.7 mmol) of Compound (1-4-1) produced in Example 2, 0.4 g (3.2mmol) of 4-vinyl-1-cyclohexene-1,2-epoxide, and toluene (1.0 g) wereloaded into a 50-ml four-necked flask equipped with a reflux condenser,a temperature gauge, a dropping funnel, a septum cap made of silicon,and a stirrer. In a stream of nitrogen, the mixture was heated to 60° C.while being stirred. A Karstedt's catalyst (0.9 μl) was added to themixture with a microsyringe to initiate the reaction. After thecompletion of heat generation had been confirmed, the mixture was heatedto be brought into a reflux state. The mixture was subjected to areaction for 2 hours, and then part of the reaction mixture was sampledand subjected to infrared absorption spectral analysis. Thedisappearance of a peak at 2137 cm⁻¹ originating from Si—H group wasconfirmed, and the time point of the disappearance was defined as theend point of the reaction. Then, the reaction mixture was concentratedunder reduced pressure at 80° C. for 2 hours, thereby a yellow solid(1.4 g) was obtained. The resultant yellow solid was dissolved in ethylacetate (1.4 g). After that, the solution was dropped to normal hexane(28 g), followed by stirring. Then, the mixture was filtered with amembrane filter having pore size of 0.1 μm, and the filtrate wasconcentrated under reduced pressure at 80° C. for 2 hours, therebyCompound (1-6-1) as a white solid (1.3 g) was obtained.

¹H-NMR (CDCl₃): δ (ppm); 0.01 (s, 24H), 0.40-0.44 (m, 8H), 0.52-0.63 (m,2 H), 0.82-0.87 (m, 4H), 0.95-1.26 (m, 18H), 1.43-1.49 (m, 2H),1.59-1.78 (m, 6H), 1.94 (dd, 4H), 2.91-3.01 (m, 8H), 7.17 (t, 8H), 7.25(t, 8H), 7.33 (t, 4H), 7.38-7.43 (m, 12H), 7.56 (d, 8H).

²⁹Si-NMR (CDCl₃): δ (ppm); −106.92, −79.41, −79.18, 11.26, 11.28, 11.34,11.36.

Example 5 Synthesis of Compound (1-3-2)

6.4 g (6.0 mmol) of Compound (3-2) obtained in Synthesis Example 2, 2.2g (8.3 mmol) of tetraacetoxysilane, and ethyl acetate (120 ml) wereloaded into a reaction vessel equipped with a reflux condenser, atemperature gauge, and a stirring device. In a stream of nitrogen, themixture was heated to 75° C. while being stirred, and was then subjectedto the reaction for 4 hours. After the mixture had been cooled to roomtemperature, 1.1 g (4.2 mmol) of tetraacetoxysilane were added to themixture, followed by heating to 75° C. to perform the reaction for 1hour. Then, the resultant was cooled to room temperature. After that,water was added to the resultant, and the mixture was centrifuged to beseparated into a solid and a liquid. Toluene (40 ml) was added to theresultant solution, and the mixture was centrifuged again to beseparated into a solid and a liquid; the operation was repeated 3 times.A filtrate thus obtained was concentrated under reduced pressure,thereby Compound (1-3-2) as a white solid was obtained.

¹H-NMR δ (ppm); 6.17 (s, 4H).6.83-7.69 (m, 80H).

²⁹Si-NMR δ (ppm); −108.91, −89.70, −89.66, −78.84, −78.51, −77.67.

Example 6 Synthesis of Compound (2-1-1)

1 g (0.9 mmol) of Compound (3-2) obtained in Synthesis Example 2, 0.8 g(3.0 mmol) of tetraacetoxysilane, and ethyl acetate (40 ml) were loadedinto a reaction vessel equipped with a reflux condenser, a temperaturegauge, and a stirring device. In a stream of nitrogen, the mixture washeated to 55° C. while being stirred, and was then subjected to areaction for 5 hours. Then, the mixture was cooled to room temperature.After that, 6.4 g (6.0 mmol) of Compound (3-2) were dissolved intetrahydrofuran (20 ml), and the obtained solution was added to themixture, followed by heating to 55° C. to perform the reaction for 6hours. Then, the resultant was cooled to room temperature. After that,it was neutralized, washed with water, filtered, and concentrated,thereby a white solid (7.8 g) was obtained. Next, ethyl acetate (30 ml)was added to the resultant white solid, followed by stirring. Afterthat, the mixture was separated into a solid and a liquid. Then, toluene(40 ml) was added to the resultant filtrate, and the produced solid wasseparated by filtration. Then, hexane was added to the filtrate forrecrystallization, thereby Compound (2-1-1) as a white solid wasobtained.

²⁹Si-NMR δ (ppm); −109.10, −78.99, −78.58, −77.81, −77.68, −69.02.

1-22. (canceled)
 23. A polysiloxane represented by the formula (2):

where in the formula (2): R independently represents alkyl having 1 to45 carbon atoms whereby optional hydrogen may be replaced by fluorineand optional —CH₂— may be replaced by —O—, —CH═CH—, or cycloalkylene;cycloalkyl having 4 to 8 carbon atoms; substituted or unsubstituted arylwhereby optional hydrogen on aryl may be replaced by halogen or alkylhaving 1 to 10 carbon atoms in which optional hydrogen may be replacedby fluorine and optional —CH₂— may be replaced by —O—, —CH═CH—, orphenylene; or substituted or unsubstituted arylalkyl whereby optionalhydrogen on aryl may be replaced by halogen or alkyl having 1 to 10carbon atoms in which optional hydrogen may be replaced by fluorine, andoptional —CH₂— may be replaced by —O—, —CH═CH—, or phenylene, andalkylene of the arylalkyl has 1 to 10 carbon atoms whereby optionalhydrogen may be replaced by fluorine and optional —CH₂— may be replacedby —O—, —CH═CH—, or phenylene; n represents an integer of 1 to 1,000; R²independently represents hydrogen; alkyl having 1 to 10 carbon atomswhereby optional hydrogen may be replaced by hydroxyl, halogen,carboxyl, ester, 2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group,isocyanate, oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl,(meth)acryloyl, 4-vinylphenyl, alkyleneoxy, or mercapto, and optional—CH₂— may be replaced by —O—, —CH═CH— or phenylene; or phenyl.
 24. Apolysiloxane represented by the formula (2-0):

where in the formula (2-0), n represents an integer of 1 to 1,000, andR² independently represents hydrogen; alkyl having 1 to 10 carbon atomswhereby optional hydrogen may be replaced by hydroxyl, halogen,carboxyl, ester, 2,4-dioxo-3-oxacyclopentyl, acetoxy, amino group,isocyanate, oxiranyl, 3,4-epoxycyclohexyl, oxetanyl, cyano, vinyl,(meth)acryloyl, 4-vinylphenyl, alkyleneoxy, or mercapto, and optional—CH₂— may be replaced by —O—, —CH═CH— or phenylene; or phenyl.
 25. Apolysiloxane represented by the formula (2-1):

where in the formula (2-1), n represents an integer of 1 to 1,000.
 26. Amethod of producing a polysiloxane represented by the formula (2-a),comprising reacting a compound represented by the formula (1-0-1) with acompound represented by the formula (1-0-2):

where in the formula (1-0-1), R independently represents alkyl having 1to 45 carbon atoms whereby optional hydrogen may be replaced byfluorine, and optional —CH₂— may be replaced by —O— or —CH═CH—;cycloalkyl having 4 to 8 carbon atoms; substituted or unsubstituted arylwhereby optional hydrogen on aryl may be replaced by halogen or alkylhaving 1 to 10 carbon atoms in which optional hydrogen may be replacedby fluorine, and optional —CH₂— may be replaced by —O— or —CH═CH—; orsubstituted or unsubstituted arylalkyl whereby optional hydrogen on arylmay be replaced by halogen or alkyl having 1 to 10 carbon atoms in whichoptional hydrogen may be replaced by fluorine, and optional —CH₂— may bereplaced by —O— or —CH═CH—, and alkylene of the arylalkyl has 1 to 10carbon atoms, and optional —CH₂— in the alkylene may be replaced by —O—;and in the formula (1-0-2), X represents a group capable of reactingwith silanol;

where in the formula (2-a), R represents a group defined in the samemanner as R in the formula (1-0-1); X represent a group defined in thesame manner as X in the formula (1-0-2); and n represent an integer of 1to 1,000.
 27. A method of producing a polysiloxane represented by theformula (2-a), comprising reacting a compound represented by the formula(1-0-1′) with a compound represented by the formula (1-0-2′):

where in the formula (1-0-1′) and (1-0-2′) M is alkali metal, and Rindependently represents alkyl having 1 to 45 carbon atoms wherebyoptional hydrogen may be replaced by fluorine, and optional —CH₂— may bereplaced by —O— or —CH═CH—; cycloalkyl having 4 to 8 carbon atoms;substituted or unsubstituted aryl whereby optional hydrogen on aryl maybe replaced by halogen or alkyl having 1 to 10 carbon atoms in whichoptional hydrogen may be replaced by fluorine, and optional —CH₂— may bereplaced by —O— or —CH═CH—; or substituted or unsubstituted arylalkylwhereby optional hydrogen on aryl may be replaced by halogen or alkylhaving 1 to 10 carbon atoms in which optional hydrogen may be replacedby fluorine, and optional —CH₂— may be replaced by —O— or —CH═CH—, andalkylene of the arylalkyl has 1 to 10 carbon atoms, and optional —CH₂—in the alkylene may be replaced by —O—; and X¹ represents halogen;

where in the formula (2-a) R represents a group defined in the samemanner as R in the formula (1-0-1′); X′ represents a group defined inthe same manner as X′ in the formula (1-0-2′); and n represent aninteger of 1 to 1,000.